Merrifield, Patrick
Current rating: 1506
Record: 7-7
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 54 | Sipos, Nick (1500) | Lost 1-2 | -191507 |
| 2standard | 516 | Frankenfield, Peter (1557) | Won 2-1 | +191526 |
| 3standard | 579 | Fancy, Rachel (1449) | Won 2-1 | +171543 |
| 4standard | 277 | Wilson, David (1455) | Lost 1-2 | -201523 |
| 5standard | 356 | Pinchbeck, Adam (1541) | Lost 1-2 | -171506 |
| average opponent: 1500record: 2-3 | new rating: 1506 | |||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 339 | Kenner, Rory (1500) | Won 2-1 | +181518 |
| 2standard | 405 | Seidel, Joshua (1518) | Lost 0-2 | -181500 |
| 3standard | 511 | Merz, Clayton (1500) | Won 2-1 | +181518 |
| 4standard | 350 | Paschke, Tyler (1522) | Won 2-1 | +181536 |
| 5standard | 254 | Trojan, Jay (1940) | Lost 1-2 | -111525 |
| 6standard | 366 | Wilson, Alec [USA] (1468) | Won 2-0 | +171542 |
| 7standard | 236 | Halavais, Arthur (1601) | Won 2-1 | +191561 |
| 8standard | 192 | Randall, Raymond (1554) | Lost 1-2 | -181543 |
| 9standard | 229 | Clingan, Casey (1587) | Lost 0-2 | -171526 |
| average opponent: 1577record: 5-4 | new rating: 1526 | |||